Hi {firstname} {lastname},     We inform you of the remaining amount at paying for your order # {reference}. Total order: {total} Amounts due: {rest} Remains to pay: {pay} See you soon on {shop_name}, Customer Service from {shop_name}     You can review your order and download your invoice from the "Order history" section of your customer account by clicking "My account" on our shop.   For paying the rest "Order paying" on our shop.   {shop_name}